           org  $800      ;program
; compute gamma = alpha + beta
           move.b alpha,d0  ; alpha is in d0
           add.b beta,d0    ;gamma = alpha + beta
           move.b d0,gamma  ;copy result to gamma
           nop


           org  $1000      ;data
alpha      ds.b 1
beta       ds.b 1
gamma      ds.b 1